/Engine/Source/Runtime/RHI/Public/RHIGPUReadback.h
void EnqueueCopy ( [FRHICommandList](API\Runtime\RHI\FRHICommandList) & RHICmdList, [FRHITexture](API\Runtime\RHI\FRHITexture) * SourceTexture, [FResolveRect](API\Runtime\RHI\FResolveRect) Rect )